Strip-serving device.



PATBNTED AUG. 25, 1908.

H. P. ROBERTS. STRIP SERVING DEVICE. APPLICATION FILED 00w. 31,1907.

2 SHEETSSHEET 1.

PATENTED AUG. 25, 1908.

Z SHEETS-SHEET 2.

mmmmmmmmmmm thereto; Fig. 3

. section, of a strip side elevation of a of a modified form of my invention.

mounted thereon is a suitable casing 2,-

wherein is suitably supported; as uponthe UNITED STATES PATENT OFFICE.

HENRY PITT ROBERTS, OF BOSTON, MASSACHUSETTS, ASSIGNOR, BY MESNE ASSIGNMENTS,

TO NATIONAL BINDING MACHINE COMPANY, OF BOSTON, MASSACHUSETTS, A CORPO- RATION OF MAINE.

STRIP-SERVIN G DEVICE.

Specification of Letters Patent.

Patented Au 25, 1908.

To all whom it may concern:

Be it known that I, HENRY PITT Ron- ERTS, a citizen of the United States, residing at Boston, in the county of Sufiolk and State of Massachusetts, have invented 'an Improvement in Strip-Serving Devices, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawing representing like parts.

This invention relates to devices or apparatus for sup lying strips of paper, cloth or thelike empfiiyed for wrapp ng or binding packages, or for use as labels, or for other purposes, and has particular reference to that type of devices or apparatus employing a support for a coil of paper or other strip having an adhesive previously applied to one side thereof and then dried and having means for moistening the gummed side of the strip as the latter is withdrawn from its coil. It is apparent, however, that an ungumme'd strip of paper, cloth or the like might be employed, in which case the moistening device for the strip, suitably positioned with respect thereto, would contain an adhesive instead of water.

In order that the principles of the invention may be readily understood, I have disclosed a single type or embodiment thereof in the accompanying drawings, wherein Figure 1 is a side elevation, partially in serving device embodying ig. 2 is a plan view of the parts immediately adjacent 1s a vertical transverse section of thestrip serving device shown in Fig. 1 upon'the line 3 3 of that figure Fig. 4 is a portion of the casing, Within which the c011 of the .stri supported; Fig; 5 i's'a central .longitu tion taken through the moistener; Fig. 6 is a view, partially diagrammatic and partially my 1nvention moistener and in vertical transverse section, illustrative of my invention; ,and Fig. 7 is a side elevation Referring more particularly to that single type or embodiment of m invention herein illustrated, the framing w erein the parts of the device may besupported is represented at 1, it being of any preferred form, mate rial or construction. Formed therewith or inal sec.

spindle 3, a coil or roll 4 of pa er, cloth or the like having an adhesive app iedto one face thereof. Tension may be applied to the coil or roll in any suitable manner, as by the provision of a nut 5 mounted upon the threaded end of the spindle 3, a cover 6 being provided, if dGSlIGd, for convenient access to the interior of the casing and cooperating with the nut 5 in imparting suitable tension to the roll or coil. Suitably and preferably removably supported upon the base 1 of the framing is a tank 7 adapted to contain water or an adhesive if desired. The side walls of said tank are provided with polygonal sockets 8 to receive the squared ends 9 of a spindle 1 0 having loosely mounted thereon a moistener 11 of any suitable construction, and herein represented as a hollow barrel or cylinder.

If desired, the. peripheral surface of said moistener may be provided with any suitable absorbent, such as flannel, wicking. or the like, to convey moisture from the tank to the strip. In practice, however, I find it unnecessary to provide such absorbent and relyupon the rotation of the moistener to convey moisture from the'tank to the strip. This result, I most satisfactorily accomplish by perforating the surface of the moistener, preferably throughout the peri heral portion thereof. In Figs. 2 and 5, I iiave, for convenience of illustration, re resented a portion only of such periphera surface as provided with perforations. Such perforations should be relatively small in diameter. I find in practice that moisture readily adheres in a film-like form to the edges of the perforations, so that it is conveyed in suflicient quantities to the stri' to moisten the surface thereof. Any suita le material may be em loyed to provide the peripheral surface of the moistener such, for example, as thin sheet metal, Wire gauze or the like.

' Uponthe spindle 10 I preferably provide guiding disks 12 and between them attach to the spindle 11 one end of a coiled spring 13, the opposite end portion 14 .whereof bears frictionally upon theinner peripheral surface of the moistener 11.

Intermediate the casing 2 and the moistener, I provide suitable guiding Ineans,herein' represented as a fixed rod or guide 15, and a preferably rotatable'guide .or roll 16, herein represented as mounted above the guide Herein, for the purpose, I form the upper forward edge of the tank 7 as a severing blade 18. L

It is highly desirable in a strip serving device that means be provided to separate the moistenerand the strip after the termina tion of the serving operation. Heretofore devices have been employed located in the rear or in advance of the moistener and tend ing to elevate or separate the strip from the moistener or to move the moistener from the strip. I have discovered that I may employ themoistener itself to separate the stri therefrom after the strain u on the strip is relaxed. I may employ for t fu's purpose any suitable means associated with or operatively connected to the 'moistener. The mechanism herein described I have, howeverfound to be highly efficient for the purpose.

As theforward end of the strip 19 is drawn upon for use, the surface thereof to be moistened is drawn across and in contact with the surface of the moistener in the direction of the arrow re resented in Fig. 6. In so doing, the friction etween the strip and the moistener imparts a movement of forward rotation to t e latter, and by reason of the frictional engagement of the inner peripheral,

surface of the moistener and the s ring 13, the latter is moved-clockwise in suc manner as to tension the same. If desired, suitable means may be provided so that the tension of the spring may be adapted to the requiremerits of the particular moistener to which it is applied or, if desired, different springs may. be employed of different strengths, according to the particular needs of the device to which the invention is applied.

' I may, if desired, employ other types of springs as, for example, coiled springs mounted exteriorly of the moistener and suitably connected thereto, to accomplish the purpose described, and may provide suitable means to adjust the tension of such spring or springs. It is also a parent that I may employ weights to accomp ish the pur ose described I and in other ways carry out t e pur ose of my invention.

upon the strip im arts a'movement of forward rotation to t e moistener, which more tF-ghtlycoils or tensions the spring 13 until such tension exceeds the coefficient of fric tion between the moistener and the strip 19, whereupon said tensioned spring prevents It is apparent that, w en the strip is drawn upon for use the forward draft further forward rotation of the strip, 1mmediately upon the severing of the strip, the tensioned spring becomes active and imparts a reverse movement or a movement of backlash to the said moistener.

In lieu of the guides 15 and 16, about which the strip is passed on its way from the casing 2 to the moistener, I may provide any suitable guiding means. In practice, the leading end of an adhesive strip passed reversely about a lurality of. guides, substantially as indicated in Figs. 1 and 6, tends, after the severin action, to'lift or elevate itself from the su ace of the moistener. This action is a parently due to the rigidity, stiffness or res1 lency of the strip. Such inherent quality of the strip, which uality is perhaps somewhat intensified by t e application of the adhesive, tends somewhat as stated to elevate the leading end of the strip. In order, however, to render such lifting action fully efl'cctive, I have provided the means herein described, whereby the moistener in its retrograde movement discharges the strip thorofrcm to such an extent as to prevent the immediate return of the strip thereto. That is to say, by the action of the moistener, the stri is elevated past the critical angle within which thc'free end of the strip may tend inimediatcly to return to the moistener, even though such means as the guides 15 and 16 may be provided in the rear thereof.

It is apparent that I may employ, in substitution of the guides 15 and 16, any suitable strip lifting device tendin to elevate the free end of the stri with w 'ch the moistener herein describe cooperates, to insure the effective separation of the striptherefrom.

In Fig. 7, I have illustrated a modified form of my invention, wherein spring supports 20 of any suitable t e may be provided, tending to elevate tie moistener in opposition to the downward impulse given t ereto by the forward draft upon the strip,

1. A strip serving device comprising a strip thereto, said moistener being constructed to separate the strip therefrom after the moistening operation.

2. strip servin device comprising a strip sup ort from whic the strip may be drawn by raft thereon by the operator, anda mo stener in operative relation thereto, said molssupport and a rnoistener in operative relation tener being constructed to separate the strip therefrom when the strain upon the strip 1s relaxed.

3. A strip serving device comprising a strip support, a moistener in operative relation thereto, and strip severing means, said moistener being constructed and arran ed to separate the strip therefrom when the strip is severed.

4. A strip serving device comprising a strip support and a moistener in operative relation thereto, said moistener being constructed to receive a forward impulse from the strip when the latter is drawn upon for use and to separate the strip therefrom at the termiiiation of the serving 0 eration.

5. A strip serving evice comprising a strip support and a moistener in operative relation thereto, said moistener being constructed to receive a forward impulse when the strip is drawn upon for use and a return movement 'at the termination of'the serving operation. 6. A- strip serving device comprising a strip support, aanoistener in' operative relation thereto, strip severing means, said moistener being constructed and arranged to receive, when the strip is moved past and in contact with the same in the serving operation, a forward impulse from the said strip, andmeans operatively connected with said moistener to impart a return movemen't thereto, when the strip is severed for use.

7. A strip serving device comprising a strip support and a moistener in operative relation thereto, said moistener being mounted for rotary, movement, and mechanical means to impart a movement of rotation to said moistener only in a direction opposed to that in which the strip is drawn upon for use..

8. A strip serving device comprising a strip support and a moistener in operative relation thereto, said moistener being mounted for rotary movement and ada ted to be "forwardly rotated by friction'o the'strip thereon when the latter is drawn upon for'use, and means operatively connected with said moistener to impart a movement of reverse rotation thereto at the termination of draft upon the strip for use. I?

9. A strip serving device comprising a strip support, and a moistener in operative r'ela tionthereto, said moistener being mounted for rotary movement and being constructed to receive a movement of back-lash at the termination of the strip serving operation.

10. A strip serving device comprising a strlp sup ort and a'moistener in operative relation t ereto, said moistener being mount- 1 ed for'rotary movement, and means associated w1th said moistener to oppose the forward draft of the strip when the latter is drawn past the same for use, said means, when the strain upon the strip is relaxed, be-

ingeflective to separate the strip from the -Istener. p

11. A strip serving device comprising a strip sup ort and a moistener in operative relation t ereto, said moistener being mounted for movement in the direction offorward draft of the strip, and means associated with said moistener to op )ose the forward draft of the strip when the fatter is drawn past the same for use, said means, when strain upon the strip is relaxed, being effective to separate the strip from the moistener.

12. A strip serving device comprising a strip support, a moistener in operative relation thereto, said moistener being mounted for rotary movement in opposite directions and adapted to be forwardly rotated by friction of the strip when moved past the same for use, and means rendered potential by such forward rotation, to separate the strip from the moistener at the termination of the serving operation.

.13. A stripserving device comprising a strip support, a moistener 1n operative relation thereto, stnp severing means in advance I of the moistener, said moistener being' mounted for rotary movement 1n opposlte directions and adapted to be forward y rotated by friction of the strip when moved past the same for use, and means rendered potential by such forward rotation, to separate the strip from the moistener when the strip is severed.

14. A strip serving device comprising a strip support, a moistener in operativerela- 'tion thereto, and means operatively connected with said moistener and rendered potentialby draft upon the strip for use to'separate the strip from the moistener when strain upon the strip is relaxed.

15. A strip servin device comprising a strip support, a mova le moistener in operative relation thereto, and means contactin with the moistener and rendered potentia by draft upon the strip for use to separate the strip from the moistener when strain upon the strip is relaxed.

16. A strip serving device comprising a strip support, a moistener in operative relation thereto, said moistener bein mounted forrotary movement and adapte to be forwardly rotated by draft upon the strip for use, and a spring operatively connected with the moistener and rendered potential by draft upon the strip for use, said spring acting, at the termination of the serving operation, to impart a movement of'reverse rotation; to said moistener, thereby to separate the strip from the moistener.

17. A strip serving device comprising a strip support, a rotary moistener mounted inoperative relation thereto, and a coil spring mounted within said moistener and having a portion contacting with the inner surface thereof, the arrangement of parts beingsuch that the spring is tensioned by forward rotation of the moistener when the strap is drawn past and in contact therewith an imparts a reverse movement to the moistener when the strip is severed.

18. A strip serving device comprisinga o strip support, a rotary moistener mounted in 0 erative relation thereto, a stationary spind e whereon said moistener is loosely mounted and a coil spring mounted u on said spindle within said moistener and aving a portion contacting with the interior thereof, the forward movement of rotation of said moistener, due to the friction of the strip when drawn upon for use, serving to tension said spring, whereby when the strip is severed a movement of back-lash is imparted to the moistener.

19. A strip serving device comprising a strip support, a moistener mounted in operative relation thereto, strip guidin means to support the strip when passing rom the support to the moistener, and means operatively connected to the moistener and rendered potential by forward draft upon the strip to separate the strip from the moistener.

20. A strip serving device com rising a strip su port, a moistener -mounte(i in operative re ation thereto, a plurality of guides about which the strip may be reversely passed, when passing from the support to the moistener, and means associated with the moistener and rendered otential byforward draft upon the strip to e evate the strip from the moistener. p

21.' A strip serving device com rising a strip su port, a moistener mounte in operative re ation thereto,'means engaging the strip upon its passage from the support to the moistener and tending to separate the free end of the strip from the moistener when the strip is severed, and means operativel connected with the moistener and tending to position the free end of the strip from contact with the moistener; I

22. A strip serving ,device c omprisin a strip support, a rotary moistener mounted in operative relation thereto, strip guiding means engaging the strip upon its passage fromits support to themoistener and tending to elevate the free end of the strip after the serving 0 eration, and means rendered potential by t e movement of forward rotation "of said moistener by engagement of the strip therewith when drawn upon for use and active when the strip is severed to elevate the freeend' thereof from the moistener. I

2 3. A strip serving device com rising a sm L su port, a moistener mounte 1n operative re atlon thereto, strip severmg' means,

means to elevate the free end of the strip from the moistener after the severing action, and means lntermediate the molstener and moisture from the strip.

24. A strip serving device comprising a strip support, a tank mounted in operative relation thereto, and a rotary moistener mounted in said tank, said moistener having its peripheral surface provided with relative y small perforations, whereby, in the rotation of the moistener, moisture from the tank adheres to the edges of said perforations and is thereby conveyed to the strip.

25. A strip serving device comprisinga strip support, a moistener in operative relation thereto, said moistener being mounted for rotary movement, means associated with said moistener to op ose the forward draft of the strip when the atter is drawn past. the same for use, said means, when the strain upon the strip is relaxed, being effective to means tending to force said moistener into increased frictional engagement. with the strip, when the latter is drawn upon for use.

26. A strip serving device com rising-'a the strip severing means to remove excess of separate the strip from the moistener, and

strip su port, a moistener mounte in ope'rative re ation thereto, means to elevate the free end of the strip from the moistener after the severing operation, and means in advance of the moistener to remove excess of moisture from the strip.

27-. A strip serving device com rising a strip su port, a moistener mounte in operative re ation thereto, strip severin means, and means operative intermediate t e moistener and the strip severing means to remove excess of moisture from the strip.

28. A strip serving ap aratus comprising in combination a stripro lsupport, a severing device, a tank or reservolr, a moistener sup orted-therein beneath the service path of t e strip, and a spring or springs const1tuting the sup ort for the moistener and tending normal y to project the moistener toward the service path of the strip, the mois-'- tener being mova le downwardly against the stress of the spring or springs by forward draft with downward pressure upon. the- 

